Computer screen 'waves'

KLNy98

Prominent
May 26, 2017
5
0
510
My computer screen has some sort of waves (from top to bottom). When I play HD videos these 'waves' are gathering for a minute or two and then they spread all over the screen (Sorry, this is the best way I can describe it). Anyway, I know there's already an answer on the waves matter, but I'm just wondering if there's something I can do when I play videos.

Oh, and these waves are also gathering when the computer does various tasks, example updating a program.

Is my screen broken or something? Thanks in advance.
 

KLNy98

Prominent
May 26, 2017
5
0
510


It's not LED. I don't know what crt is but my screen is almost 6 years old. And I have tried all the solutions offered by another answer including those you mention.
 

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